kiro51
Answered

When light intensity is below above 400 umol photons/m2/s, do sun plants or shade plants have a higher rate of photosynthesis?

Answer :

offthewall41

Answer:

-Abiotic factors such as light, water, and temperature

-The more light, the faster the plant is able to photosynthesize, however, plants reach its level of maximum photosynthesis if the intensity of light is too high

-Temperatures above or below range of 0 degrees Celsius and 35 degrees C can cause damage to enzymes, ceasing photosynthesis

-If too much or too little water is applied, plant cells may wither and die, or explode

Explanation:

marianaegarciaperedo

When environmental light intensity is below 400 umol phs/m²/s, shade plants have a higher photosynthetic rate. Above this level, sun plants have a higher rate of photosynthesis.  

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The photosynthetic rate depends in part on the plants' environment.

Being all conditions favorable -light availability, water, and temperature level-, photosynthesis intensity increases with light intensity.

The more light intensity and exposure, the better and faster the plant photosynthesizes.

However, there is a limit for all these environmental factors over which the photosynthetic rate can be affected or reach its maximum point.

Concerning light, there is an intensity level when exposed to a standard unit of light intensity, at which plants express their highest photosynthetic rate.

It depends, among other reasons, on the type of plant.

Shade plants

  • Low levels of light are enough for plants that grow in the shade.

  • Shade plants can express their highest photosynthetic rate at intensities of 400 umol photons/m²/s.

  • From this point on, the photosynthetic rate remains equal.

Sun plants

  • On the other hand, plants that grow in the sun need much higher levels of light to express their highest photosynthetic rate.

  • Sun plants keep increasing their photosynthetic rates at intensities higher than 400 umol photons/m²/s, expressing their highest performance near 1000 umol photons/m²/s.

Comparing both types of plants,

  • At lower light intensity (0-300 umol photons/m²/s), the photosynthetic rate of shade plants is higher than the one of sun plants.

  • Near 400 umol photons/m²/s, the photosynthetic rate of both types of plants is almost equal.

  • Over 400 umol photons/m²/s, the photosynthetic rate of shade plants reaches their maximum level, while the sun plants one keeps increasing.

  • Between 800 -1000 umol photons/m²/s, the photosynthetic rate of sun plants reaches their maximum level.

According to this information,

  • below 400 umol photons/m²/s, shade plants have a higher rate of photosynthesis

  • above 400 umol photons/m²/s, sun plants have a higher rate of photosynthesis

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